Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yuzo Hirao | Wakunaga Pharmaceutical Co. | 10 |
| 2 | Masaharu Yokomoto | Wakunaga Seiyaku Kabushiki Kaisha | 7 |
| 3 | Hiromichi Matsuura | Wakunaga Seiyaku Kabushiki Kaisha | 6 |
| #4 | Tsuyoshi Ushiroguchi | Wakunaga Seiyaku Kabushiki Kaisha | 1 |
| #4 | Shizutoshi Nakagawa | Wakunaga Seiyaku Kabushiki Kaisha | 1 |